<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>CSS Test Reference</title>
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    <span style="border: 2px solid blue; border-left: none; border-right: none">
      a b
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    <span style="border: 2px solid blue; border-left: none;">
      c
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